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Drag characteristics of a turbulent boundary layer over a flat plate with transverse square grooves

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Abstract

 The effect of transverse square grooves on the drag characteristics of a flat plate has been investigated using direct drag measurements in a tow tank. Two flat plates with 2.5 and 5 mm transverse square grooves, with groove spacing (s) to groove width (w) ratio, s/w=10, 20 and 40, were tested at plate length Reynolds numbers in the range 2–10×106. There is an increase in drag over the “smooth” plate for all s/w configurations.

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Authors and Affiliations

  1. Faculty of Engineering & Applied Science, Memorial University of Newfoundland, St. John’s, NF, A1B 3X5 Canada, , , , , , CA

    C. Y. Ching

  2. NRC Institute for Marine Dynamics, St. John’s Newfoundland, NF, A1B 3T5, Canada, , , , , , CA

    B. L. Parsons

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  1. C. Y. Ching
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  2. B. L. Parsons
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Received: 31 December 1997/Accepted: 4 April 1998

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Ching, C., Parsons, B. Drag characteristics of a turbulent boundary layer over a flat plate with transverse square grooves. Experiments in Fluids 26, 273–275 (1999). https://doi.org/10.1007/s003480050289

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  • DOI: https://doi.org/10.1007/s003480050289

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